A method for monitoring transmission in a wireless network comprising a radio access infrastructure and wireless devices, is provided. The method comprises: generate an estimated number of wireless devices according to a predetermined profile of number of wireless devices; generate an estimated trajectory of each of the estimated number of wireless devices according to a predetermined profile of trajectories; for each wireless device of the estimated number of wireless devices, determine an estimated distribution of the probabilities of radio transmission error during a time window using the estimated trajectory of the wireless device; and determine an estimate of a figure of merit of the wireless network based on the respective estimated distributions of the probabilities of radio transmission error during the time window for the wireless devices.